MusEYEum Online Catalogue

Welcome to the online catalogue of the British Optical Association Museum. Here you can search for both museum artifacts and archives. Data is transferred from our Collections Management System to this website on a regular basis.


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Contact Lens Computer
selection chart
The Plastic Contact Lens Company
North America: USA, Illinois, Chicago
Mid 20th c.
overall: 206 mm x 53 mm

'Slide-rule' type calculating chart. Obverse = fitting guide and pupil gauge; Reverse = vertex distance and computed power. White inner card. Light green outer sheath overprinted in dark blue.


Gift of Mrs Paula Chabrel, 2014

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